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The patent EP1602138 was granted to Dionex on Jan 24, 2018. The application was filed on Dec 16, 2002 under application number EP02792413A. The patent is currently recorded with a legal status of "Revoked".

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| METROHM | Oct 23, 2018 | HEPP WENGER RYFFEL | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | DE19537506 |
| INTERNATIONAL-SEARCH-REPORT | EP0351891 |
| INTERNATIONAL-SEARCH-REPORT | GB2122354 |
| INTERNATIONAL-SEARCH-REPORT | US5437999 |
| INTERNATIONAL-SEARCH-REPORT | US5755953 |
| OPPOSITION | DE19537506 |
| OPPOSITION | GB2122354 |
| OPPOSITION | US2001035349 |
| OPPOSITION | US5131999 |
| OPPOSITION | US5437999 |
| OPPOSITION | US5755953 |
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
Date
Description
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Oct 5, 2023
Oct 5, 2023
Sep 29, 2023
Jun 20, 2023
Jun 20, 2023
Mar 2, 2023
Oct 14, 2022
Oct 14, 2022
Oct 14, 2022
Oct 6, 2022
Sep 16, 2022
Advice of delivery
Appeal
Sep 12, 2022
Refund of fees
Search/Exam
Sep 8, 2022
Sep 8, 2022
Sep 8, 2022
Sep 8, 2022
Sep 5, 2022
Aug 3, 2022
(Electronic) Receipt
Appeal
Aug 3, 2022
Aug 3, 2022
Withdrawal of an appeal
Appeal
Jul 8, 2022
Advice of delivery
Appeal
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jun 29, 2022
Nov 9, 2020
Sep 8, 2020
Aug 31, 2020
(Electronic) Receipt
Appeal
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Reply to appeal
Appeal
Aug 31, 2020
Reply to appeal
Appeal
Apr 22, 2020
Apr 14, 2020
(Electronic) Receipt
Appeal
Apr 14, 2020
Apr 14, 2020
Feb 19, 2020
Feb 19, 2020
Feb 12, 2020
(Electronic) Receipt
Appeal
Feb 12, 2020
Feb 12, 2020
Notice of appeal
Appeal
Dec 10, 2019
Dec 6, 2019
Dec 2, 2019
Dec 2, 2019
Dec 2, 2019
Dec 2, 2019
Dec 2, 2019
Dec 2, 2019
Dec 2, 2019
Dec 2, 2019
Dec 2, 2019
Dec 2, 2019
Means of redress
OPPO
Dec 2, 2019
Dec 2, 2019
Dec 2, 2019
Dec 2, 2019
Nov 6, 2019
Oct 17, 2019
Oct 14, 2019
Oct 14, 2019
Oct 14, 2019
Oct 8, 2019
Oct 2, 2019
Oct 2, 2019
Oct 2, 2019
Oct 2, 2019
Sep 11, 2019
Sep 6, 2019
Sep 6, 2019
Claims
OPPO
Sep 6, 2019
Claims
OPPO
Sep 6, 2019
Claims
OPPO
Sep 6, 2019
Claims
OPPO
Sep 6, 2019
Claims
OPPO
Sep 6, 2019
Claims
OPPO
Sep 6, 2019
Claims
OPPO
Sep 6, 2019
Claims
OPPO
Sep 6, 2019
Claims
OPPO
Sep 6, 2019
Sep 6, 2019
Aug 30, 2019
Aug 27, 2019
Aug 27, 2019
Aug 27, 2019
May 23, 2019
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Mar 20, 2019
Mar 14, 2019
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Claims
OPPO
Mar 14, 2019
Claims
OPPO
Mar 14, 2019
Claims
OPPO
Mar 14, 2019
Claims
OPPO
Mar 14, 2019
Claims
OPPO
Mar 14, 2019
Claims
OPPO
Mar 14, 2019
Mar 14, 2019
Mar 11, 2019
Submission concerning representation
Search/Exam
Nov 6, 2018
Nov 6, 2018
Oct 26, 2018
Oct 23, 2018
Oct 23, 2018
Oct 23, 2018
Oct 23, 2018
Oct 23, 2018
Oct 23, 2018
Oct 23, 2018
Oct 23, 2018
Oct 23, 2018
Oct 23, 2018
Oct 23, 2018
Oct 23, 2018
Oct 23, 2018
Oct 23, 2018
Jul 3, 2018
Submission concerning representation
Search/Exam
Feb 2, 2018
Jan 5, 2018
Decision to grant a European patent
Search/Exam
Nov 17, 2017
(Electronic) Receipt
Search/Exam
Nov 17, 2017
Filing of the translations of the claims
Search/Exam
Nov 17, 2017
French translation of claims
Search/Exam
Nov 17, 2017
German translation of the claims
Search/Exam
Nov 17, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 21, 2017
Jul 21, 2017
Jul 21, 2017
Intention to grant (signatures)
Search/Exam
Jul 21, 2017
Text intended for grant (clean copy)
Search/Exam
Jul 21, 2017
May 25, 2017
(Electronic) Receipt
Search/Exam
May 25, 2017
Amended claims with annotations
Search/Exam
May 25, 2017
Amended description with annotations
Search/Exam
May 25, 2017
Claims
Search/Exam
May 25, 2017
Description
Search/Exam
May 25, 2017
Letter accompanying subsequently filed items
Search/Exam
May 25, 2017
Jan 18, 2017
Annex to the communication
Search/Exam
Jan 18, 2017
Communication from the Examining Division
Search/Exam
Jan 11, 2017
Jan 10, 2017
Jan 9, 2017
Jan 2, 2017
Decision to allow further processing
Search/Exam
Dec 22, 2016
Observations by third parties
Search/Exam
Dec 14, 2016
(Electronic) Receipt
Search/Exam
Dec 14, 2016
French translation of claims
Search/Exam
Dec 14, 2016
German translation of the claims
Search/Exam
Dec 14, 2016
Letter accompanying subsequently filed items
Search/Exam
Dec 14, 2016
Request for further processing
Search/Exam
Oct 26, 2016
Sep 28, 2016
Sep 20, 2016
Sep 13, 2016
Observations by third parties
Search/Exam
May 11, 2016
May 11, 2016
May 11, 2016
Intention to grant (signatures)
Search/Exam
May 11, 2016
Text intended for grant
Search/Exam
Dec 5, 2013
Nov 8, 2013
Nov 6, 2013
Jun 7, 2010
Decision to allow further processing
Search/Exam
May 26, 2010
Amended claims with annotations
Search/Exam
May 26, 2010
Request for further processing
Search/Exam
May 24, 2010
Amended claims with annotations
Search/Exam
May 24, 2010
Payment of fees and costs
Search/Exam
May 24, 2010
Request for further processing
Search/Exam
Apr 20, 2010
Jan 21, 2010
Jan 15, 2010
Jan 12, 2010
Sep 3, 2009
Annex to the communication
Search/Exam
Sep 3, 2009
Communication from the Examining Division
Search/Exam
Oct 26, 2005
Oct 11, 2005
Oct 6, 2005
Copy of the international search report
Search/Exam
Oct 6, 2005
Jul 27, 2004
Jul 22, 2004
Communication to designated inventor
Search/Exam
Jul 22, 2004
Communication to designated inventor
Search/Exam
Jul 22, 2004
Communication to designated inventor
Search/Exam
May 18, 2004
May 18, 2004
May 10, 2004
Information on entry into European phase
Search/Exam
May 10, 2004
Matter concerning the application
Search/Exam
May 10, 2004
Request for entry into the European phase
Search/Exam
Jul 3, 2003
Published international application - A2
Search/Exam
Feb 4, 2003
Abstract
PCTISA
Feb 4, 2003
Claims
PCTISA
Feb 4, 2003
Description
PCTISA
Feb 4, 2003
Drawings
PCTISA